UShort containing Bits to int, float etc...

[Marco [Stinger]]

Hi
Newbe question:

I've got an external (Embedded C+) function that reads a PLC and returns an
array of 16 unsigned (PLC people call them WORD, but in C# thay should
be UShort).
That array contains the bits required to valorize a variable of variuos
kinds:
can be a char, Byte, Short, UShort, Int, UInt and Float.

THA QUESTION IS:
How do I convert in CF C# the BITS (or BitArray) contained in thoose
UShort in a Float (etc....)

PLEEEEEESE Help

Ciao
Marco

 

[Alex Feinman [MVP]]

That depends on the format they are using, endiannes, width of bitfields for
float point numbers etc. Easiest would be if you could obtain a C reference
for data conversion from them. It'll be relatively simple to convert it to
C#.
In general a handy tool for conversions between simple data types is
Buffer.BlockCopy:

double[] a = new double[] { 1, 2, 3 };

byte[] b = new byte[Buffer.ByteLength(a)];

Buffer.BlockCopy(a, 0, b, 0, Buffer.ByteLength(a));

This converts an array of doubles into their memory representation as bytes.
Both target and source can be any of the basic types, like int, short,
double, even char.

 

[Chris Tacke, eMVP]

Take a look at the System.BitConverter class methods

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Chris Tacke
Co-founder
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